256218549

素因数分解:

$3^1\times {\mathrm{373}}^1\times {\mathrm{401}}^1\times {\mathrm{571}}^1$

素因数の和:1348

約数の個数: 16

約数和(自身を含む): 343996224

約数和(自身を除く): 87777675

約数列:

[1, 3, 373, 401, 571, 1119, 1203, 1713, 149573, 212983, 228971, 448719, 638949, 686913, 85406183, 256218549]

約数ペア:

[(1, 256218549), (3, 85406183), (373, 686913), (401, 638949), (571, 448719), (1119, 228971), (1203, 212983), (1713, 149573)]